WindowsServer 2003 has stopped taking connections from outside our

[Guest Aaron Paulley]

Hello. I'm in a bit of a bind that I cannot figure out.

 

Around 12:30 today our Windows Server 2003 stopped receiving email (POP3)

server. Internal mail worked fine, we could send emails around the office

(most of the time), but all mail coming in from the outside stopped.

 

Long story short, I have been able to determine that ALL connections from

anywhere outside our own network are timing out or being refused, on all

ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are refused.

 

I changed NOTHING on the server. I wasn't even near the server when this

started and hadn't even logged into it for several days.

 

I cannot figure out why all incoming traffic is timing out. The server can

see the internet fine -- I can surf the web with it, etc...

 

Our DNS records are all correct; our MX records are all correct. They worked

at 12:29, and at 12:30 they didn't. There is no discernible, logical reason

for this to have happened.

 

I'm getting sort of desperate because I've been here banging my head on the

wall for 9 hours on this issue alone.

 

Thanks,

Aaron

[Guest Robert L \(MS-MVP\)]

Re: WindowsServer 2003 has stopped taking connections from outside our

 

Can you telnet pop3 port in the LAN? If yes, I would check the firewall.

 

--

Bob Lin, MS-MVP, MCSE & CNE

Networking, Internet, Routing, VPN Troubleshooting on

http://www.ChicagoTech.net

How to Setup Windows, Network, VPN & Remote Access on

http://www.HowToNetworking.com

 

 

"Aaron Paulley" <Aaron Paulley@discussions.microsoft.com> wrote in message

news:D698D6C7-F1AD-4AAC-894D-64247B4D4F48@microsoft.com...

> Hello. I'm in a bit of a bind that I cannot figure out.

>

> Around 12:30 today our Windows Server 2003 stopped receiving email (POP3)

> server. Internal mail worked fine, we could send emails around the office

> (most of the time), but all mail coming in from the outside stopped.

>

> Long story short, I have been able to determine that ALL connections from

> anywhere outside our own network are timing out or being refused, on all

> ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are refused.

>

> I changed NOTHING on the server. I wasn't even near the server when this

> started and hadn't even logged into it for several days.

>

> I cannot figure out why all incoming traffic is timing out. The server can

> see the internet fine -- I can surf the web with it, etc...

>

> Our DNS records are all correct; our MX records are all correct. They

> worked

> at 12:29, and at 12:30 they didn't. There is no discernible, logical

> reason

> for this to have happened.

>

> I'm getting sort of desperate because I've been here banging my head on

> the

> wall for 9 hours on this issue alone.

>

> Thanks,

> Aaron

[Guest Aaron Paulley]

Re: WindowsServer 2003 has stopped taking connections from outside

 

Re: WindowsServer 2003 has stopped taking connections from outside

 

Thanks for the reply. The firewall is disabled (wasn't on when I inherited

the server a few days ago as part of this job); still, no computer outside of

our LAN can connect to the server.

 

Computers on the LAN can connect fine.

 

The domain name is simcorinc.com.

 

Aaron

 

 

 

"Robert L (MS-MVP)" wrote:

> Can you telnet pop3 port in the LAN? If yes, I would check the firewall.

>

> --

> Bob Lin, MS-MVP, MCSE & CNE

> Networking, Internet, Routing, VPN Troubleshooting on

> http://www.ChicagoTech.net

> How to Setup Windows, Network, VPN & Remote Access on

> http://www.HowToNetworking.com

>

>

> "Aaron Paulley" <Aaron Paulley@discussions.microsoft.com> wrote in message

> news:D698D6C7-F1AD-4AAC-894D-64247B4D4F48@microsoft.com...

> > Hello. I'm in a bit of a bind that I cannot figure out.

> >

> > Around 12:30 today our Windows Server 2003 stopped receiving email (POP3)

> > server. Internal mail worked fine, we could send emails around the office

> > (most of the time), but all mail coming in from the outside stopped.

> >

> > Long story short, I have been able to determine that ALL connections from

> > anywhere outside our own network are timing out or being refused, on all

> > ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are refused.

> >

> > I changed NOTHING on the server. I wasn't even near the server when this

> > started and hadn't even logged into it for several days.

> >

> > I cannot figure out why all incoming traffic is timing out. The server can

> > see the internet fine -- I can surf the web with it, etc...

> >

> > Our DNS records are all correct; our MX records are all correct. They

> > worked

> > at 12:29, and at 12:30 they didn't. There is no discernible, logical

> > reason

> > for this to have happened.

> >

> > I'm getting sort of desperate because I've been here banging my head on

> > the

> > wall for 9 hours on this issue alone.

> >

> > Thanks,

> > Aaron

>

>

>

 

"Robert L (MS-MVP)" wrote:

> Can you telnet pop3 port in the LAN? If yes, I would check the firewall.

>

> --

> Bob Lin, MS-MVP, MCSE & CNE

> Networking, Internet, Routing, VPN Troubleshooting on

> http://www.ChicagoTech.net

> How to Setup Windows, Network, VPN & Remote Access on

> http://www.HowToNetworking.com

>

>

> "Aaron Paulley" <Aaron Paulley@discussions.microsoft.com> wrote in message

> news:D698D6C7-F1AD-4AAC-894D-64247B4D4F48@microsoft.com...

> > Hello. I'm in a bit of a bind that I cannot figure out.

> >

> > Around 12:30 today our Windows Server 2003 stopped receiving email (POP3)

> > server. Internal mail worked fine, we could send emails around the office

> > (most of the time), but all mail coming in from the outside stopped.

> >

> > Long story short, I have been able to determine that ALL connections from

> > anywhere outside our own network are timing out or being refused, on all

> > ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are refused.

> >

> > I changed NOTHING on the server. I wasn't even near the server when this

> > started and hadn't even logged into it for several days.

> >

> > I cannot figure out why all incoming traffic is timing out. The server can

> > see the internet fine -- I can surf the web with it, etc...

> >

> > Our DNS records are all correct; our MX records are all correct. They

> > worked

> > at 12:29, and at 12:30 they didn't. There is no discernible, logical

> > reason

> > for this to have happened.

> >

> > I'm getting sort of desperate because I've been here banging my head on

> > the

> > wall for 9 hours on this issue alone.

> >

> > Thanks,

> > Aaron

>

>

>

[Guest Robert L \(MS-MVP\)]

Re: WindowsServer 2003 has stopped taking connections from outside

 

Re: WindowsServer 2003 has stopped taking connections from outside

 

I can telnet simcorinc.com 110 without any issue.

 

--

Bob Lin, MS-MVP, MCSE & CNE

Networking, Internet, Routing, VPN Troubleshooting on

http://www.ChicagoTech.net

How to Setup Windows, Network, VPN & Remote Access on

http://www.HowToNetworking.com

 

 

"Aaron Paulley" <AaronPaulley@discussions.microsoft.com> wrote in message

news:88329940-EBCE-4235-B72D-48DFD39F05B6@microsoft.com...

> Thanks for the reply. The firewall is disabled (wasn't on when I

> inherited

> the server a few days ago as part of this job); still, no computer outside

> of

> our LAN can connect to the server.

>

> Computers on the LAN can connect fine.

>

> The domain name is simcorinc.com.

>

> Aaron

>

>

>

> "Robert L (MS-MVP)" wrote:

>

>> Can you telnet pop3 port in the LAN? If yes, I would check the firewall.

>>

>> --

>> Bob Lin, MS-MVP, MCSE & CNE

>> Networking, Internet, Routing, VPN Troubleshooting on

>> http://www.ChicagoTech.net

>> How to Setup Windows, Network, VPN & Remote Access on

>> http://www.HowToNetworking.com

>>

>>

>> "Aaron Paulley" <Aaron Paulley@discussions.microsoft.com> wrote in

>> message

>> news:D698D6C7-F1AD-4AAC-894D-64247B4D4F48@microsoft.com...

>> > Hello. I'm in a bit of a bind that I cannot figure out.

>> >

>> > Around 12:30 today our Windows Server 2003 stopped receiving email

>> > (POP3)

>> > server. Internal mail worked fine, we could send emails around the

>> > office

>> > (most of the time), but all mail coming in from the outside stopped.

>> >

>> > Long story short, I have been able to determine that ALL connections

>> > from

>> > anywhere outside our own network are timing out or being refused, on

>> > all

>> > ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are

>> > refused.

>> >

>> > I changed NOTHING on the server. I wasn't even near the server when

>> > this

>> > started and hadn't even logged into it for several days.

>> >

>> > I cannot figure out why all incoming traffic is timing out. The server

>> > can

>> > see the internet fine -- I can surf the web with it, etc...

>> >

>> > Our DNS records are all correct; our MX records are all correct. They

>> > worked

>> > at 12:29, and at 12:30 they didn't. There is no discernible, logical

>> > reason

>> > for this to have happened.

>> >

>> > I'm getting sort of desperate because I've been here banging my head on

>> > the

>> > wall for 9 hours on this issue alone.

>> >

>> > Thanks,

>> > Aaron

>>

>>

>>

>

> "Robert L (MS-MVP)" wrote:

>

>> Can you telnet pop3 port in the LAN? If yes, I would check the firewall.

>>

>> --

>> Bob Lin, MS-MVP, MCSE & CNE

>> Networking, Internet, Routing, VPN Troubleshooting on

>> http://www.ChicagoTech.net

>> How to Setup Windows, Network, VPN & Remote Access on

>> http://www.HowToNetworking.com

>>

>>

>> "Aaron Paulley" <Aaron Paulley@discussions.microsoft.com> wrote in

>> message

>> news:D698D6C7-F1AD-4AAC-894D-64247B4D4F48@microsoft.com...

>> > Hello. I'm in a bit of a bind that I cannot figure out.

>> >

>> > Around 12:30 today our Windows Server 2003 stopped receiving email

>> > (POP3)

>> > server. Internal mail worked fine, we could send emails around the

>> > office

>> > (most of the time), but all mail coming in from the outside stopped.

>> >

>> > Long story short, I have been able to determine that ALL connections

>> > from

>> > anywhere outside our own network are timing out or being refused, on

>> > all

>> > ports -- http, smtp, pop3, ftp, telnet, etc... All timeout or are

>> > refused.

>> >

>> > I changed NOTHING on the server. I wasn't even near the server when

>> > this

>> > started and hadn't even logged into it for several days.

>> >

>> > I cannot figure out why all incoming traffic is timing out. The server

>> > can

>> > see the internet fine -- I can surf the web with it, etc...

>> >

>> > Our DNS records are all correct; our MX records are all correct. They

>> > worked

>> > at 12:29, and at 12:30 they didn't. There is no discernible, logical

>> > reason

>> > for this to have happened.

>> >

>> > I'm getting sort of desperate because I've been here banging my head on

>> > the

>> > wall for 9 hours on this issue alone.

>> >

>> > Thanks,

>> > Aaron

>>

>>

>>